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| author | Liav A <liavalb@gmail.com> | 2021-01-29 20:28:19 +0200 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2021-02-01 17:13:23 +0100 |
| commit | a1e20aa04f3624204f0eff5225ad65869046fced (patch) | |
| tree | 6d63b6ad407f1695a96e5035d0aafafa0963aa43 | |
| parent | a9d1ddb1a5c959e2ced29b6906228e695498bdb9 (diff) | |
| download | serenity-a1e20aa04f3624204f0eff5225ad65869046fced.zip | |
Kernel: Fix enum of sysconf values to be in the correct order
This prevented from dmidecode to get the right PAGE_SIZE when using the
sysconf syscall.
I found this bug, when I tried to figure why dmidecode fails to mmap
/dev/mem when I passed --no-procfs, and the conclusion is that it tried
to mmap unaligned physical address 0xf5ae0 (SMBIOS data), and that was
caused by a wrong value returned after using the sysconf syscall to get
the plaform page size, therefore, allowing to send an unaligned address
to the mmap syscall.
| -rw-r--r-- | Kernel/UnixTypes.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Kernel/UnixTypes.h b/Kernel/UnixTypes.h index 271d4a45f0..294b786772 100644 --- a/Kernel/UnixTypes.h +++ b/Kernel/UnixTypes.h @@ -60,8 +60,8 @@ enum { _SC_NPROCESSORS_CONF, _SC_NPROCESSORS_ONLN, _SC_OPEN_MAX, - _SC_PAGESIZE, _SC_TTY_NAME_MAX, + _SC_PAGESIZE, }; #define PERF_EVENT_SAMPLE 0 |